Radiator



(No Model.)

A. V. M. SPRAGUE.

RADIATOR. No. 512,234. Patented Jan. Z, 1894.

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AUSTIN V. M. SPRAGUE, OF ROCHESTER, NEW YORK, ASSIGNOR TO THE SPRAGUE-SCHUYLER MANUFACTURING COMPANY, OF NEW JERSEY.

RADIATOR.

SPECIFICATION forming part of Letters Patent No. 512,234, dated January 2, 1894. Application filed March 14, 1893. Serial No.465,948. (No model.)

70 all whom it may concern;

Be it known that l, AUSTIN V. M. SPRAGUE, a resident of Rochester, in the county of Mon roe and State of New York,have invented certain new and useful Improvements in Radiators; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

The invention relates to heating by steam, and has for its object to provide an efficient and economical radiator adapted to heat the lower part of a room, closet or receptacle; and it consists in the construction hereinafter described and particularly pointed out.

In the accompanying drawings Figure 1 is a side elevation of the radiator and connections the inclosing walls being in section. Fig. 2 is a plan of a group of radiator sections, certain air passages and radiating pins being for the most part omitted; and Fig. 3 is an enlarged partial section of a radiator.

Numerals l denote the side and bottom walls of a chamber of any desired dimensions and may be understood to represent any inclosed space which requires to be warmed.

2, 2 indicate sections of a cast iron radiator made hollow as indicated to receive steam and having transverse openings, 3, for the passage of air. These openings which may be used in any desired number are by preference circular in the plane of the radiator and transversely they have the form of a grooved pulley or approximately that of an hour glass. Around these openings on each fiat side of the radiator are arranged projections or pins 4, 4, adapted to conduct and-radiate heat.

The several radiator sections are each provided with an inlet tube or nipple 6 and an outlet nipple 5. The former are adapted to be coupled with a live steam pipe 8 and the latter with a pipe 7 to carry away the exhausted or condensed steam. These pipes can be extended indefinitely and coupled with as many radiator sections as desired. The sections are inclined slightly in an upward direction from the exhaust to the inlet end to facilitate the escape of the water of condensation. Each section is provided with supporting legs of suitable length cast preferably integral with the same, and for this purpose the projections 4, 4, or a small number of them made of suitable length may be utilized. 'Fliese supportinglegs may be made of such relative length that one end of each radiator section will be held higher than the other by two, three or more inches to provide proper drainage. If however the legs were made of uniform length the sections could be suitably adjusted by other means.

It is obvious that steam could be admitted and the water of condensation removed from the same end or side of the radiator and such arrangement is contemplated by the invention.

9 indicates an air inlet which may be formed in the side or bottom of the chamber or provided in any preferred way.

l0 denotes a baii'ie plate, wall or partition behind which is situated a Ventilating flue or flues 12. As shown in Fig. 1 the plate 10 extends a little above the highest point of the radiator and the mouth of the ventilator is situated below said point. This ue is preferably near or within an external wall which is normally the coolest one whereby it tends to cool and condense the adjacent air in the room or compartment and thus promote a downward circulation in said room, the up draft in the Ventilating pipe being aided if necessary by any usual means.

The operation of the construction is as follows: The radiator sections being arranged and coupled to pipes as described, live steam is admitted and circulated through the radissl ator the spent steam passing away through transverse or oblique currentsof air resulting from the expansion caused by the heating eifect of the metal about the holes the latter being of an approximately hour-glass shape as represented whereby counter currents or eddies are promoted and the air IOO brought in more effective contact with the metal. The eiect of this upon the steam is to condense it especially along the bottom of the radiator and aboutthe openings, thereby heating the inflowing air. The horizontal progress of the fresh air is checked by the wall l0 and rises through the radiator heated and expanded. By this construction and arrangement the lower part of the chamber is more vthoroughly heated than by ordinary devices, an effect to be desired since the tendency of warm air is to ascend and give place below to cooler air so that it is more difficult to keep the lower strata sufficiently warm.

The improved radiator can, if desired, be situated below the level of the floor of the chamber it is designed to heat, suitable provision in the construction of the floor being made. The heated air as it ascends becoming moist and foul is cooled by contact with the walls of the room and with objects therein and will ultimately descend near the external or coldest Wall. If a mouth of a ventilating flue be placed near the foot of such wall it will promote this circulation. Such a Ventilating exit is indicated at l2 below the level of the radiator and separated therefrom by a baflie wall as above stated which wall surrounds the radiator though separate walls will not be required if the radiator is placed in close proximity to the Walls of the room or compartment.

Having thus fully described myinvention, what I claim is- 1. The flat oblong radiator section provided with means for supporting it latwise von a Aioor or base having inlet and outlet nipples whereby it may be coupled with inlet and combined with an air inlet below its lower end and a baffle plate at its higher end and sides, substantially as set forth.

2. The fiat oblong radiator sectionprovided with means for supporting it iiatwise on a iioor or base having inlet and outlet nipples whereby it may be coupled with inlet and outlet pipes and having transverse air openings, radiating projections grouped about said openings and means for supporting the inlet end of the section at a higher level than' the other consisting ofv one or more of said projections made longer than the others, substantially as set forth.

3; A chamber or receptacle, a radiator placed near the chamber floor and practically coextensive with the same and provided with verticallv disposed air openings, an air inlet on one side of the chamber, a baffle plate near the opposite side and an exhaustfiue having its mouth behind said baille plate, substantially as set forth. l

In testimony whereof I have signed this specification in the presence of two subscribing witn esses.

AUSTIN V. M. SPRAGUE. Witnesses: F. D. BLAoKIsToNE, ARCH. M. CATLIN. 

